Hi - Wanted to know what y'all thought of Reef Optix III 250W MH Pendants with Blue Wave ballasts. Also, since the casing is electrogalvanized steel, does it run a lot hotter than aluminum and will it raise the water temp significantly in a 50 gallon tank? I live in the east bay so wondering if this is big concern during the summer months. The depth of my tank is 20 inches. Was thinking of using these in a canopy also. Thanks!